Practice Questions

1.Define the term speed.

Speed is the distance travelled by an object in one second.

2.State 3 ways to measure distance

Ruler, measuring tape, trundle wheel

3. State 3 ways to measure time

Stop watch, timer, light gates.

4. State the formula for speed:

Speed = distance/time

Distance = speed x time

Time = distance/speed

5. A bird flies a distance of 250m in 15 seconds, calculate the speed.

Speed = distance/time

Speed = 250m/15 seconds = 17m/s

6. A man walks from his house to a shop which is 500m away from his house. Then he walks back to his house covering the same distance. This journey took him 15 minutes. Calculate his speed.

Total distance = 500m x 2 = 1000m

Time = 15 minutes x 60 = 900 seconds

Speed = distance/time

Speed = 1000m/900 seconds = 1.1m/s

7.A barrel is pushed over a distance of 0.6km at a speed of 2m/s. Calculate the time taken to push the barrel.

Distance 0.6km = 600m

Time = distance/speed

Time = 600m /  2m/s = 300 seconds